Q.
The correct order of acidic nature of trioxide is
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a
SO3, > SeO3, > TeO3,
b
SO3 > TeO3, > SeO3,
c
TeO3, > , SO3, > SeO3
d
SO3 < SeO3, < TeO3,
answer is A.
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Detailed Solution
Acidic nature decreases down the group with the decrease in electronegativity of central atomSO3+H2O⟶H2SO4 SeO3+H2O⟶H2SeO4 (Selenic acid) TeO3+H2O⟶H2TeO6 (Telluric acid)
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